Calculate aspect ratios for images, videos, and displays. Convert between dimensions while maintaining proportions. Includes common presets for social media and screen diagonals.
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16:9 is the most common for video and displays. 4:3 is traditional TV format. 1:1 is used for social media posts. 9:16 is for mobile/stories.
Divide width by height and simplify the fraction. For example, 1920x1080: 1920/1080 = 1.778, which simplifies to 16:9.
Instagram: 1:1 (feed), 4:5 (portrait), 9:16 (stories). YouTube: 16:9. TikTok: 9:16. Twitter: 16:9 or 2:1. Facebook: 1.91:1.
Yes, the Aspect Ratio Calculator is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.
The Aspect Ratio Calculator uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.
Yes, the Aspect Ratio Calculator is fully responsive and works on any device with a modern web browser, including smartphones, tablets, laptops, and desktops. No app installation is needed.
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Calculate aspect ratios for images, videos, and displays. Convert between dimensions while maintaining proportions. Includes common presets for social media and screen diagonals.
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| Platform | Type | Size | Ratio | Action |
|---|---|---|---|---|
| Square Post | 1080×1080 | 1:1 | ||
| Portrait Post | 1080×1350 | 4:5 | ||
| Story / Reels | 1080×1920 | 9:16 | ||
| YouTube | Video HD | 1920×1080 | 16:9 | |
| YouTube | Thumbnail | 1280×720 | 16:9 | |
| YouTube | Shorts | 1080×1920 | 9:16 | |
| TikTok | Video | 1080×1920 | 9:16 | |
| Twitter/X | Post Image | 1200×675 | 16:9 | |
| Twitter/X | Header | 1500×500 | 3:1 | |
| Post Image | 1200×630 | 40:21 | ||
| Cover Photo | 820×312 | 205:78 | ||
| Story | 1080×1920 | 9:16 | ||
| Post Image | 1200×627 | 400:209 | ||
| Cover Photo | 1584×396 | 4:1 | ||
| Pin | 1000×1500 | 2:3 |
| Ratio | Decimal | Common Resolutions | Usage |
|---|---|---|---|
| 16:9(yours) | 1.7778 | 1920x1080, 2560x1440, 3840x2160 | HD Video, Monitors, TV |
| 4:3 | 1.3333 | 1024x768, 1600x1200, 2048x1536 | Classic TV, iPad, Presentations |
| 1:1 | 1.0000 | 1080x1080, 2048x2048 | Instagram, Profile Photos |
| 9:16 | 0.5625 | 1080x1920, 720x1280 | Stories, Reels, TikTok |
| 21:9 | 2.3333 | 2560x1080, 3440x1440, 5120x2160 | Ultrawide Monitors, Cinema |
| 3:2 | 1.5000 | 2160x1440, 3000x2000 | DSLR Photos, Surface Devices |
| 5:4 | 1.2500 | 1280x1024, 2560x2048 | Older Monitors, Photography |
| 32:9 | 3.5556 | 3840x1080, 5120x1440 | Super Ultrawide Monitors |